Combined coal and gas range



L. GIAIVIBRONE.

COMBINED CUAL AND GAS RANGE.

APPLICATION FILED MAY 28. 1920.

1,384,059 Patented luly 12, 1921.

4 SHEETS-SHEET 1.

lnvani m- L. GIAIVIBRONE.

COMBINED COAL AND GAS RANGE.

APPLICATIION FILED MAY 28, 192p.

1,384,,(959, Patented July 12, 1921.

4 SHEETSSHEET 2.

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L. GIAMBRONE.

COMBINED COAL AND GAS RANGE.

APPLICATION FILED MAY 28, I920.

Patented July 12, 1921.

4 SHEETS-SHEET 3.

u a n u a u n o u o L. GIAMBRONE. COMBINED COAL AND GAS RANGE.

APPLICATION FILED MAY 28, 1920.

Patented July 12, 1921.,

' 4 SHEETS-SHEET 4.

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LOUIS GIAMBRONE, 0F BUFFALO, NEW) YORK.

COMBINED COAL AND GAS RANGE.

incense,

Application filed May 28,

To all whom it may concern:

Be it known that I, LOUIS GIAMBRONE, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Imrovements in Combined Coal and Gas anges, of which the following 1s a specification.

' This invention relates to a stove and cooking range which may be heated by elther solid or gaseous fuel. 7

One of the objects of the invention is to provide .a solid fuel, coal stove which may be initially purchased at a very low cost without any gas burning fixtures, but which is nevertheless so constructed that the purchaser may at a later date make a further investment and purchase a set of separate gas fixtures which may be readily applied to the coalstove, whereby the same may be converted into an efiicient gas range without in any way impairing the usefulness of the appliances which are employed in the. burning of solid fuel. I

A further object of the lnventlon is to enable an unskilled purchaser of the combined coal and gas range to very easily and quickly alter the same to suit his particular requirements.

Further objects and advantages are more clearly disclosed in the following descr1ptionand accompanying drawings wherein:

Figure l is a fragmentary front elevation of the combined coal and gas range with the gas burning appliances in position. Fig. 2 is a. fragmentary vertical longitudinal section through the stove, taken on line 2-2, Fig. '3, and showing a feature of the arrangement which is used when solld fuel s being burned. Fig. 3 is a fragmentary horizontal section of the range as used when burning solid fuel, taken on line 33, Fig. 4:. Fig. 4 is a. fragmentary front elevation similar to F ig.'1, but with the gas pipes and gas manifold removed, taken on line 4- 1, Fig. 8. Fig. 5 is a fragmentary horizontal section taken on line 5-5, Fig. 1, with the gas burning appliances in position. Fig. 6 is a similar fragmentary horizontal section but taken on line 6-6, Fig. 1.

Similar. characters of reference indicate corresponding parts throughout the several views.

10 represents the vertical outer end wall of the stove or range and 11 the vertical outer front wall thereof. Resting upon said I Specification of Letters Patent.

storage tank in the usual 1920. Serial No. 385,053.

vertical end and front l8 in the manner common to the stove art, sald top late containing the usual circular griddle p ates or fret placed for the purpose of heating the same.

14: represents the inner vertical frontwalL usual pair of movable grate bars 16 and 160v and the stationary grate bars 17 forthe purpose of supporting the solid fuel and for removing the lower strata of ashes which accumulate at the bottom part of the fire box as the solid fuel is consumed. The one movable grate bar 16 extends forwardly somewhat farther than its companion and its extreme front end is formed square at 18 in cross section to facilitate the engagement of the same with the customary shaker lever, accessibility to the same being gained by a suitable shaker vdoor'l9.

Flanking the fire box on one side is the usual water box 20 which contains water that is to be heated, the same being suitably connected by water pipes to a hot water and well known manner. On the other side of the fire box opposite to said water front is the customary baking or heating oven 21 which is lined with a fire brick lining 22 on the side adjacent to the fire box.

neously raises the temperature of both the water front'20 and the baking oven 21 and sealed up simultaneously by. placing in its proper positiona detachable Y or triangu- Patented'July12, 1921;

walls is the usual top plate 12 whose edges are turned down wardly and outwardly to form the flange;

plates (not shown)- upon which utensils containing food are one end of the combined range and be-- It is obvious that the incandescent fuel in the firebox simulta- 30 that is lar shaped sealing piece 25. The three ends or terminii of the branches of this sealing piece are provided on th'eir'rearward sides with and engage comparatively snugly with the boresof the apertures 23, 230 ;and 24;

Where the inner faceof the wall 14 of the fire box is provided withvertical stiffening ribs 27, it is preferred that the rear face of said bosses 26 be likewise provided with ribs 270, so that the vertical downward slidingmovement of the' solid'material in'the fire box is unimpeded. Formed centrally in the ,Y-shaped' sealing-piece'and a'p proximately equidistant from the threehpertures aforesaid, is "a rectangular hole 2:8 which is' adapted to receive apei'foratedlug formed on and projects forwardly and outwardlyflfrom the inner vertical front wall 14. YBy passinga cotter'pinll or other through the horizontal suitable key or 1 pm I perforation or ho'l'e'32 of the aperture'd" lug,

the same bears against the 'outer faCeofthe: sealingpiece 25 'andholds the same rear wardly. 'Thus' the sealing piece I is held sec'urely .in place against'the saidoven wall and seals up'a'll of thethree apertures,

reason of, the engagement of the annular bosses 26 with the pe'ripheral' edges of; the

apertures aforesaid. j i v It is customary practice in the construe tion of stoves to render the front face of the fire box accessible. T hisis accomplished by forming a large communication opening or doorway34 in-the outer front wallll of the range'and normally covering or closing the same bya cleeplyffianged, firebox door ferred that: these outer three openings be covered up in a manner somewhat different however from the means employed to cover up the apertures in the inner wall 14. Extendingforw'ardly' or outwardly from the front of the door and at a point approximately equidistant from all three openings is a'stud bolt 40 whose outer threaded end receives a large ornamental round nut or headj41. Between the saidsornamental nut and the front face of the door-35 is pivotally arranged a Y-shaped swinging cover plate 42 which swings in a vertical plane'about the said'stud bolt 40 as a pivot. The three outer terminii or the ends ofthe'arms of the said swinging cover plate aresuitably enlarged so as to be adapted to cover up or close the three aforesaid openings in the door.' Fig. 4 shows the swinging covering the annular bosses 26 which enter into i all sideward dlsplacement' being prevented by with their companion aper plate, in its covering position in full lines and its uncovering? position in dotted lines, the two'extreme'positions being limited by suitable stop lugs 43 and 44, respectively. When the swinging cover plate is in either of its extreme positions or in any intermediate position, the same may be securelyclamped-"to the door upon which it is mounted, by manually turning the ornamental nut 41, sothat said' cover'plate'is prevented from noisily rattling when the re box door 35 is opened or closedf The pivotal hole in the cover plate which"re ceives the stud bolt '40 is preferably, positioned 'sufiiciently "high upin the" cover:

plate, so that it'iswel'l above but perpend-ic ularly in line with the center of gravityof' sai'dicover plate. This feature is not 'me-. chanically necessary very desirable, covering plate .co'verin'g I in the door" will always tend to cover 'ups'aid openings even to properly tighten the ornamentar nut 41. Of course, in s' A will be loose and noisy but because the tendency Q the is then always toassum'e'its still the 'usefulness and the functionlng or thestove will be definitely insured. Itwi'll be now more clearly understood that the stove isadapted to burn "solid fuel when bothsaidY shape d' swinging cover plate 42 is in its covering? position and likewise the Y-shapedsealing piece 25, ELSSllOXVIL g in Figs. 2,3 and 4. When however it IS desired to convert this range, certain alterations areprovidedfor. The owner of the stove who desirestouse though the operator neglect ch latterc'ase, the cover plate.

position, j so that the openings 7 '100 solid'fuelstove or range into a gasburning gas as a fuel, makes the following purchases 1 either at the time he originally purchases the coal stove, or atanytime subsequent thereto: a T-shaped gas manifold.46,' a pair of manifold brackets 47, two gas pipes'48 and 480 with burners ,and a' combinedlovenheating and water-front'gas pipe '50. When the purchaser obtains these'items, he first attaches the two manifolchbracl'rets 4'Z'g-to the stove by meansof stove bolts '51, the latter passing have previously been drilled in the down. turned flange 13 of the stove topg1'2. Then he mounts the T-shapedmanifold46, with its threegas valves, onsaid brackets 47an'd tubularly connects said manifold to the gas supply mainsby suitable piping 52, elbows. 53, etc., in the usual manner, 'Thenhe loosens the ornamentalfnut=4l*aiid' turns the swinging cover plate 42to the 'il0tted line position of -Fig. 4 and preferably I again tightens the said ornamental nut to: prei'rjent rattling. He then opens the door 35 and removes the cotter pin 31 and theY-shaped through suitable holes which 7 pipes 50, 48 and 480 successivelyffrom the fire box out through thefront of the stove and into engagement with their companion gas valves. The stove is now suited to burn gaseous fuel, and the same may obviously be converted back to a coal stove whenever desired. It is obvious also that the original purchaser may purchase the stove as a gas range per 86 if he desires without the grate bars, ash pan and other coal burning appliances, so that his initial investment for the gas stove is just that much less. Then later when circumstances are altered, he can remove the gas apparatus and purchase and install the grate bars etc., these being easily placed in position in a manner common to the stove art.

Each of the three gas pipes is mechanically supported at its outer or forward end in the companion opening in the door 35, while its central part is supported on suitable shoulders formed just below the companion aperture in the inner wall 14. The upper two burners 48 and 480 are supplied at their rear ends with the usual star-shaped burners 55 and 550 but the lower gas pipe is of novel construction, as shown in Fig. 6. This lower gas pipe is supplied with an annular supporting collar 56 which rests on a suitable shelf on the inner side of the inner wall 14, and is thus capable of rotation about its central axis. hxtending out laterally and then projecting longitudinally backwardly from the gas pipe proper is a branch pipe 57 whose outer side is pierced with a longitudinal row of gas holes 58. In the full line position of Fig. 6, these holes direct the flaming gas against the fire brick 22 of the backing oven 21, thereby heating said oven. When, however, it is desired to heat the water front 20, the branch pipe 57 is swung over to the dotted line position of Fig. 6, in which case the gas flames are directed against the adjacent wall of said water front and thereby raise the temperature of the water therein. If desired, twobranch pipes may be supplied, one for just the water front and one for just the heating oven, which is doubtless more convenient but materially more expensive, inasmuch as double the amount of piping and an additional gas valve on the gas manifold would be required. Therefore for commercial reasons the construction shown of the combined water front and oven heating pipe is preferred, this gas pipe being less frequently used than either of the two griddle heating gas pipes 48 and 480. A stove having the characteristics of this improved combined coal and gas range should not be confused with the stoves now on the market which are adapted to burn either solid or gaseous fuel without any radical mechanical alterw tions. Such stoves have an undoubted market but they do not meet the full requirements, that is, they are very costly because purchaser is buying the complete gascoal stove. In this invention the purchaser may buy either a stove for gas or a stove for coal and alter the same to burn a different fuel at any time in the future he desires, and he may at that time make additional expenditures for the additional equipment.

I claim as my invention:

1. A combined coal and gas range having an opening in one of its vertical walls, a combined water front and oven heating gas pipe adapted to pass through and to be rotated in said opening and having a laterally-extending branch pipe, and means for covering up said opening when said combined gas pipe is not being used.

2. A combined coal and gas range comprising a fire box, an oven arranged on one side of said fire box and a water front arranged on the other side of said fire box, a combined water front and oven heating gas pipe cap-able of rotation about its central axis and provided with a laterally and longitudinally extending branch pipe which is adapted to be swung either against said water front or against said oven.

3. A combined coal and gas range provided on one of its vertical walls with several openings arranged in the shape of a triangle, a T-shaped gas manifold detachably connected to said range with its arms arranged in front of said openings, and several gas pipes adapted to be passed through said openings and to be detachably connected to the arms of said as manifold.

LO IS GIAMBRONE. 

